Multiport DRAM. MSM54V16282 Datasheet

MSM54V16282 DRAM. Datasheet pdf. Equivalent

Part MSM54V16282
Description Multiport DRAM
Feature E2L0026-17-Y1 www.DataSheet4U.com ¡ Semiconductor ¡ Semiconductor MSM54V16282 262,144-Word ¥ 16-Bit.
Manufacture OKI electronic
Datasheet
Download MSM54V16282 Datasheet




MSM54V16282
E2L0026-17-Y1
www.DataSheet4U.com
¡¡SemicondSucetormiconductor
MSM54V16282
262,144-Word ¥ 16-Bit Multiport DRAM
This versMionS:MJ5a4nV. 119692882
Previous version: Dec. 1996
DESCRIPTION
The MSM54V16282 is a 4-Mbit CMOS multiport DRAM composed of a 262,144-word by 16-bit
dynamic RAM, and a 512-word by 16-bit SAM. Its RAM and SAM operate independently and
asynchronously.
It supports three types of operations: random access to RAM port, high speed serial access to
SAM port, and bidirectional transfer of data between any selected row in the RAM port and the
SAM port. In addition to the conventional multiport DRAM operating modes, the MSM54V16282
features block write and flash write functions on the RAM port, and a split data transfer
capability on the SAM port. The SAM port requires no refresh operation because it uses static
CMOS flip-flops.
FEATURES
• Single power supply: 3.3 V ±0.3 V
RAS only refresh
• Full TTL compatibility
CAS before RAS refresh
• Multiport organization
CAS before RAS self-refresh
RAM : 256K word ¥ 16 bits
• Hidden refresh
SAM : 512 word ¥ 16 bits
• Serial read/write
• Fast page mode
• 512 tap location
• Write per bit
• Bidirectional data transfer
• Byte write
• Split transfer
• Masked flash write
• Masked write transfer
• Masked block write (8 columns)
• Refresh: 512 cycles/8 ms
• Package options:
64-pin 525 mil plastic SSOP (SSOP64-P-525-0.80-K) (Product : MSM54V16282-xxGS-K)
70/64-pin 400 mil plastic TSOP (Type II)(TSOPII70/64-P-400-0.65-K)(Product : MSM54V16282-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Family
MSM54V16282-60
MSM54V16282-70
Access Time
RAM SAM
60 ns 18 ns
70 ns 20 ns
Cycle Time
RAM SAM
120 ns 22 ns
140 ns 22 ns
Power Dissipation
Operating
Standby
160 mA
8 mA
150 mA
8 mA
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MSM54V16282
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PIN CONFIGURATION (TOP VIEW)
VCC 1
TRG 2
VSS 3
SDQ0 4
DQ0 5
64 SC
63 SE
62 VSS
61 SDQ15
60 DQ15
SDQ1 6
59 SDQ14
DQ1 7
58 DQ14
VCC 8
SDQ2 9
57 VCC
56 SDQ13
DQ2 10
55 DQ13
SDQ3 11
54 SDQ12
DQ3 12
53 DQ12
VSS 13
52 VSS
SDQ4 14
51 SDQ11
DQ4 15
50 DQ11
SDQ5 16
49 SDQ10
DQ5 17
48 DQ10
VCC 18
SDQ6 19
47 VCC
46 SDQ9
DQ6 20
45 DQ9
SDQ7 21
44 SDQ8
DQ7 22
43 DQ8
VSS 23
WEL 24
WEU 25
RAS 26
42 VSS
41 DSF
40 NC
39 CAS
A8 27
38 QSF
A7 28
37 A0
A6 29
36 A1
A5 30
35 A2
A4 31
34 A3
VCC 32
33 VSS
64-Pin Plastic SSOP
VCC 1
TRG 2
VSS 3
SDQ0 4
DQ0 5
SDQ1 6
DQ1 7
VCC 8
SDQ2 9
DQ2 10
SDQ3 11
DQ3 12
VSS 13
SDQ4 14
DQ4 15
SDQ5 16
MSM54V16282
70 SC
69 SE
68 VSS
67 SDQ15
66 DQ15
65 SDQ14
64 DQ14
63 VCC
62 SDQ13
61 DQ13
60 SDQ12
59 DQ12
58 VSS
57 SDQ11
56 DQ11
55 SDQ10
DQ5 20
VCC 21
SDQ6 22
DQ6 23
SDQ7 24
DQ7 25
VSS 26
WEL 27
WEU 28
RAS 29
A8 30
A7 31
A6 32
A5 33
A4 34
VCC 35
51 DQ10
50 VCC
49 SDQ9
48 DQ9
47 SDQ8
46 DQ8
45 VSS
44 DSF
43 NC
42 CAS
41 QSF
40 A0
39 A1
38 A2
37 A3
36 VSS
70/64-Pin Plastic TSOP (II)
(K Type)
Pin Name
A0 - A8
DQ0 - DQ15
SDQ0 - SDQ15
RAS
CAS
WEL
WEU
TRG
Function
Address Input
RAM Inputs/Outputs
SAM Inputs/Outputs
Row Address Strobe
Column Address Strobe
Write Enable Lower
Write Enable Upper
Transfer/Output Enable
Pin Name
SC
SE
DSF
QSF
VCC
VSS
NC
Function
Serial Clock
SAM Port Enable
Special Function Input
Special Function Output
Power Supply (3.3 V)
Ground (0 V)
No Connection
Note: The same power supply voltage must be provided to every VCC pin, and the same GND
voltage level must be provided to every VSS pin.
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